import {DOM} from 'angular2/src/core/dom/dom_adapter';

import {Injectable} from 'angular2/src/core/di';

import {EventListener, History, Location} from 'angular2/src/core/facade/browser';

import {LocationStrategy} from './location_strategy';

@Injectable()

export class PathLocationStrategy extends LocationStrategy {

private _location: Location;

private _history: History;

private _baseHref: string;

constructor() {

super();

this._location = DOM.getLocation();

this._history = DOM.getHistory();

this._baseHref = DOM.getBaseHref();

}

onPopState(fn: EventListener): void {

DOM.getGlobalEventTarget('window').addEventListener('popstate', fn, false);

}

getBaseHref(): string { return this._baseHref; }

path(): string { return this._location.pathname; }

pushState(state: any, title: string, url: string) { this._history.pushState(state, title, url); }

forward(): void { this._history.forward(); }

back(): void { this._history.back(); }

}